Implement top app bar and reset button for Edit mode

Clicking on the reset button opens a confirmation dialog.
Additionally this change fixes:
- the icon tiles interactor ignoring size updates when using an outdated current tiles list. This happened while resetting due to the simultaneous change to both current tiles and sizes.
- the mismatch corner radius for the edit grid container

Flag: com.android.systemui.qs_ui_refactor_compose_fragment
Bug: 366257479
Test: manually
Test: SizedTilesResetInteractorTest
Test: DynamicIconTilesInteractorTest
Test: TileSpecSettingsRepositoryTest
Change-Id: Ibdbc1eecebb0043f094f40574eba01f410d86950